Sites like holgerscode.com

Leanpub, a self-publishing platform where authors sell early-access and in-progress books, including technical titles on software and AI

JSON Schema is a declarative language and documentation site for annotating and validating the structure and data types of JSON documents

A UI framework and documentation site for the Svelte web framework, which compiles components into minimal browser code

Personal website of Sebastián Ramírez, a Colombian software developer, sharing ideas, guides and his open source projects like FastAPI

The official website for the Go open-source programming language, with documentation, tutorials, and the Go Blog

A testing framework called Vitest, powered by Vite, with documentation for writing, mocking and configuring JavaScript tests

A documentation site for pytest, the Python testing framework, with a list of talks, books and tutorials about it

TanStack, an open-source collection of headless web application libraries and tools, with a design system, blog and chat app

A JavaScript testing framework named Jest, documented on its official site, with French and English pages and community help

Simon Willison's Weblog, a personal blog by developer Simon Willison on software, AI tools and web programming, plus a Gemini text-to-speech playground